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CD8+T细胞活化后增殖分化形成的杀伤性 T 细胞，能介导杀伤病毒感染细胞、肿瘤细胞等靶细胞，其杀伤机制包括（ ）。A.
分泌穿孔素和颗粒酶，杀伤靶细胞
B.
形成MAC，导致靶细胞溶解
C.
分泌 TNF-α，与靶细胞表面的TNF 受体结合，启动靶细胞凋亡
D.
表达 FasL，与靶细胞表面Fas 结合，启动靶细胞凋亡
E.
分泌多种细胞因子，趋化天然杀伤细胞，杀伤靶细胞
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A.
collapsing
B.
falling
C.
slipping
D.
dropping
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A.
/w?:k/
B.
/w?:k/
C.
/w?k/
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/we?k/
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